Rigid amoled module

Abstract

The utility model discloses a kind of rigid AMOLED module, belong to AMOLED module technical field, including substrate, the reinforcing box with top open is equipped in the substrate lower, the reinforcing box bottom is equipped with through-hole, the reinforcing box inner bottom wall is fixedly connected with mounting bracket above the through-hole.The rigid AMOLED module, reinforcing box provides mechanical protection for driving plate, substrate, polarizing layer, optical adhesive layer, the installation of driving plate above through-hole is realized by screw cooperation mounting bracket, driving assembly extends to the inboard of through-hole, and it is convenient to ventilate and radiate heat, compared with existing device, avoid the problem that the reinforcing box affects driving plate test maintenance with poor protection effect, improve stability and practicality.

Description

Technical Field

[0001] This utility model belongs to the field of AMOLED module technology, and in particular relates to a rigid AMOLED module. Background Technology

[0002] AMOLED is a display technology, short for Active Matrix Organic Light Emitting Diode. AMOLED is a self-emissive screen that does not require a backlight, thus offering advantages such as vibrant colors, high contrast, fast response time, and a thin and light profile. It is widely used in smartphones, smartwatches, and other electronic devices. Rigid AMOLED modules, unlike flexible AMOLED modules, use glass as a substrate and cannot be bent.

[0003] In most existing rigid AMOLED modules, the glass substrate is exposed before the final installation step, posing a risk of substrate glass structure breakage during production, transportation, and customer installation. For some rigid AMOLED modules, to protect the substrate glass, the substrate, polarizing layer, driver board, and other components are all encapsulated in a ruggedized box, which makes subsequent testing and repair of the driver board quite troublesome.

[0004] To address these issues, we propose a rigid AMOLED module. Utility Model Content

[0005] The purpose of this invention is to solve the problems of unsatisfactory protection and troublesome maintenance in the existing technology, and to propose a rigid AMOLED module.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A rigid AMOLED module includes a substrate, a reinforcing box with an open top surface located below the substrate, a through hole on the bottom surface of the reinforcing box, a mounting bracket fixedly connected to the inner bottom wall of the reinforcing box above the through hole, a driver board fixedly connected to the upper end of the mounting bracket by screws, and a driver assembly located inside the through hole fixedly connected to the side of the driver board facing away from the substrate; a polarizing layer is fixedly provided on the top surface of the substrate, an optical adhesive layer is fixedly provided on the top surface of the polarizing layer, a glass cover plate is fixedly provided on the top surface of the optical adhesive layer, and an anti-reflective coating is applied to the top surface of the glass cover plate.

[0008] Preferably, the bottom wall of the reinforced box is fixedly connected to four corners of the base plate with a raised post, and the drive plate is located in the middle of the four raised posts.

[0009] Preferably, a ventilation hole is provided through the lower part of the side wall of the reinforcement box, and the top of the ventilation hole is lower than the top of the shim column.

[0010] Preferably, a buffer pad that matches the base plate is fixedly connected to the inner side wall of the reinforced box.

[0011] Preferably, the reinforcing box and the glass cover are fixedly bonded together with sealant.

[0012] Preferably, the antireflective coating includes an antireflective layer applied to the top surface of the glass cover, and the top surface of the antireflective layer is coated with a hydrophobic and oleophobic layer.

[0013] In summary, the technical effects and advantages of this utility model are as follows: This rigid AMOLED module provides mechanical protection for the driver board, substrate, polarizing layer, and optical adhesive layer through a reinforcement box. The driver board is installed above the through hole by screws and mounting brackets. The driver components extend to the inside of the through hole for ventilation and heat dissipation. Compared with existing devices, it avoids the problems of poor protection effect and the reinforcement box affecting the testing and maintenance of the driver board, thus improving stability and practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] In the diagram: 1. Substrate; 2. Reinforcement box; 3. Through hole; 4. Mounting bracket; 5. Screw; 6. Drive board; 7. Drive assembly; 8. Polarizing layer; 9. Optical adhesive layer; 10. Glass cover plate; 11. Elevating post; 12. Ventilation hole; 13. Buffer pad; 14. Sealant; 15. Anti-reflective coating; 16. Heat sink; 17. Anti-reflective layer; 18. Hydrophobic and oleophobic layer; 19. Cable. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figure 1-2A rigid AMOLED module includes a reinforcing box 2 with an open top surface located below a substrate 1. A through hole 3 is formed on the bottom surface of the reinforcing box 2. A mounting bracket 4 is fixedly connected to the inner bottom wall of the reinforcing box 2 above the through hole 3. A driver board 6 is fixedly connected to the upper end of the mounting bracket 4 via screws 5. A driver assembly 7 located inside the through hole 3 is fixedly connected to the side of the driver board 6 facing away from the substrate 1. The driver board 6 and the substrate 1 are electrically connected via a ribbon cable 19. The driver assembly 7 is existing technology and includes electronic components such as a driver chip, capacitors, and resistors. The driver assembly 7 on the driver board 6, in conjunction with the ribbon cable 19, drives the AMOLED substrate 1 to emit light. Heat sinks 16 should be provided for electronic components that generate significant heat (such as the driver chip). The aforementioned driver assembly 7 is common in the AMOLED module field and will not be described in detail. A polarizing layer 8 is fixedly provided on the top surface of the substrate 1. The polarizing layer 8 includes a polarizer to eliminate specular reflections from the metal lines and electrodes of the AMOLED substrate 1, significantly improving the screen's visibility in strong light environments, increasing the screen's contrast, and making blacks appear purer. An optical adhesive layer 9, referring to OCA optical adhesive, is fixedly provided on the top surface of the polarizing layer 8. A glass cover plate 10 is fixedly provided on the top surface of the optical adhesive layer 9. The polarizing layer 8 and the glass cover plate 10 are seamlessly bonded together by the optical adhesive layer 9, which increases the structural strength and also prevents dust and water vapor. An anti-reflective coating 15 is applied to the top surface of the glass cover plate 10.

[0019] Reference Figure 1 This rigid AMOLED module, during use, uses a reinforcing box 2 to provide encapsulation protection for the substrate 1, driver board 6, polarizing layer 8, and optical adhesive layer 9. When repairing the driver board 6, simply remove the screws 5 connecting the mounting bracket 4 to the driver board 6 through the through hole 3 to remove the driver board 6. Then, a working driver board 6 can be installed back onto the mounting bracket 4 using the screws 5. The driver assembly 7 on the driver board 6 is located at the through hole 3, and the external airflow provides heat dissipation for the driver assembly 7, thereby improving operational stability.

[0020] Since excessive thickness of the reinforcing box 2 leads to disadvantages such as increased cost, reduced space utilization, and excessive module thickness, the thickness of the reinforcing box 2 should be less than the sum of the thicknesses of the drive board 6 and the drive assembly 7 in actual use. To avoid the problem of the drive assembly 7 extending to the outside of the reinforcing box 2 and being easily damaged, the four corners of the bottom wall of the inner wall of the reinforcing box 2 are fixedly connected with the shims 1 that cooperate with the substrate 1. The drive board 6 is located in the middle of the four shims 11. The shims 11 are used to raise the substrate 1, so that the drive board 6 is located inside the reinforcing box 2. The bottom of the drive assembly 7 is not lower than the bottom surface of the reinforcing box 2. The shims 11 and the substrate 1 can be fixed and bonded with glass glue to improve stability.

[0021] Reference Figure 1A ventilation hole 12 is provided through the lower part of the side wall of the reinforced box 2 to improve air circulation in the lower part of the inner side of the reinforced box 2 and optimize heat dissipation for the drive board 6 and drive components 7. The top of the ventilation hole 12 is lower than the top of the shim column 11 to prevent outside air from affecting the display part above the substrate 1 (the display part refers to the polarizing layer 8 and the optical adhesive layer 9), thereby improving the practicality of the AMOLED module.

[0022] A buffer pad 13 is fixedly connected to the inner wall of the reinforcement box 2 to fit the substrate 1. The buffer pad 13 fills the gap between the substrate 1 and the inner wall of the reinforcement box 2, preventing outside air from entering the area above the substrate 1 from below, thus improving the environmental stability above the substrate 1. In addition, when the reinforcement box 2 is subjected to external impact, the buffer pad 13 can also provide cushioning for the substrate 1, improving its impact resistance and stability.

[0023] The reinforcing box 2 and the glass cover plate 10 are fixedly bonded together with sealant 14. The sealant 14 fixes the bottom surface of the reinforcing box 2 to the glass cover plate 10. At the same time, the sealant 14 also prevents outside air from entering the upper part of the reinforcing box 2 through the gap between the glass cover plate 10 and the reinforcing box 2, which would affect the display part above the substrate 1 and improve the practicality of the AMOLED module.

[0024] Reference Figure 2 The anti-reflective coating 15 includes an anti-reflective layer 17 coated on the top surface of the glass cover 10. The anti-reflective layer 17 includes a magnesium fluoride coating, which reduces the reflectivity to about 1.5%. The top surface of the anti-reflective layer 17 is coated with a hydrophobic and oleophobic layer 18, which includes a fluoropolymer (such as fluorosilane or perfluoropolyether). Through its hydrophobic and oleophobic properties, it keeps the screen clean and clear, improves touch smoothness, and enhances usability.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rigid AMOLED module, comprising a substrate (1), characterized in that, The substrate (1) is provided with a reinforcement box (2) with an open top surface. The bottom surface of the reinforcement box (2) is provided with a through hole (3). The bottom wall of the reinforcement box (2) above the through hole (3) is fixedly connected to a mounting bracket (4). The upper end of the mounting bracket (4) is fixedly connected to a drive plate (6) by screws (5). The drive plate (6) is fixedly connected to a drive assembly (7) located inside the through hole (3) on the side facing away from the substrate (1). The top surface of the substrate (1) is fixedly provided with a polarizing layer (8). The top surface of the polarizing layer (8) is fixedly provided with an optical adhesive layer (9). The top surface of the optical adhesive layer (9) is fixedly provided with a glass cover plate (10). The top surface of the glass cover plate (10) is coated with an anti-reflective coating (15). 2.The rigid AMOLED module of claim 1, wherein, The bottom wall of the reinforced box (2) is fixedly connected with four raised columns (11) that cooperate with the base plate (1), and the drive plate (6) is located in the middle of the four raised columns (11). 3.The rigid AMOLED module according to claim 2, characterized in that, The lower part of the side wall of the reinforcement box (2) is provided with a ventilation hole (12), and the top of the ventilation hole (12) is lower than the top of the support column (11). 4.The rigid AMOLED module according to claim 3, characterized in that, The inner wall of the reinforced box (2) is fixedly connected with a buffer pad (13) that matches the base plate (1). 5.The rigid AMOLED module according to claim 1, wherein, The reinforced box (2) and the glass cover plate (10) are fixedly bonded together with sealant (14). 6.The rigid AMOLED module of claim 1, wherein, The antireflective coating (15) includes an antireflective layer (17) coated on the top surface of the glass cover plate (10), and the top surface of the antireflective layer is coated with a hydrophobic and oleophobic layer (18).

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